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The HERTEL C.E08.0357 is an extra length high-speed steel drill bit designed for drilling operations that require greater reach than standard-length bits. With a 0.1406-inch diameter and an 8-inch overall length, this bit handles applications where depth or clearance constraints make shorter bits impractical. The 118-degree drill point angle is a general-purpose geometry suited to a wide range of metalworking and fabrication tasks. An oxide finish provides basic surface protection and helps reduce friction during cutting. Licensed machinists, maintenance technicians, and metalworkers are the primary installers and users of this tooling.
This extra length drill bit is intended for general-purpose drilling in metal, wood, and similar materials where extended reach is required. Typical applications include drilling through thick stock, deep cavities, or hard-to-access areas on machinery, structural components, or fabricated assemblies. The 5.5-inch flute length supports effective chip evacuation over the extended reach, reducing the risk of chip packing during deep-hole operations. It is sold as an individual bit, making it suitable for toolroom restocking or single-job procurement.
Designed as a general-purpose extra length twist drill bit compatible with standard drill chucks and drilling equipment that accept 0.1406-inch shank diameters.
Install and remove drill bits only when the drilling equipment is fully powered down and secured. Ensure the chuck is properly tightened and the bit is fully seated before operation. Use cutting fluid when drilling metals to extend tool life and improve cut quality. Inspect the cutting edges for wear or damage before each use and replace if the point shows signs of chipping or dulling.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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